Absolute vs. Gauge Pressure

• Absolute Pressure: Measured relative to a perfect vacuum (0 bar absolute). This type of measurement is crucial in applications where precise pressure readings are necessary, regardless of atmospheric variations.
• Gauge Pressure: Measured relative to atmospheric pressure (0 bar gauge). This is commonly used in applications where the pressure difference from the surrounding environment is of primary interest.

The Ceraphant PTP31B can be configured to measure either absolute or gauge pressure, depending on the specific requirements of the application.

Key Specifications

• Measuring Range: 400 mbar to +400 bar (6 psi to +6000 psi)
• Accuracy: Up to ±0.3% of the measured value
• Process Temperature: -40°C to +100°C (-40°F to +212°F)
• Overload Resistance: Up to 400 bar (5800 psi)
• Housing Material: 316L stainless steel
• Process Connections: Threaded options including G1/4, G1/2, MNPT1/4, MNPT1/2, DIN13, JIS R1/2
• Outputs: 1 or 2 PNP switch outputs, 4–20 mA analog output, and IO-Link digital communication
• Display: Integrated 4-digit LCD with LED indicators for status and diagnostics
• Supply Voltage: 10–30 VDC
• Long-Term Stability: 0.2% of URL/year

Applications

The Ceraphant PTP31B is ideal for decentralized process monitoring and control in various industries, including:

• Chemical and Pharmaceutical: Ensuring precise pressure control in reactors and pipelines.
• Food and Beverage: Monitoring pressure in sterilization and filtration processes.
• Oil and Gas: Overseeing pressure levels in extraction and transportation systems.
• Water and Wastewater Treatment: Managing pressure in pumps and filtration units.

Advantages

• Integrated Switching Electronics: Facilitates decentralized and cost-effective process monitoring.
• On-Site Diagnostics: LED indicators and digital display allow for quick status checks and troubleshooting.
• Overload Resistance: Withstands high-pressure conditions up to 400 bar.
• Flexible Integration: IO-Link capability simplifies configuration and integration into fieldbus systems.
• Compact Design: Flush-mounted process connections save space and reduce installation complexity.